Method of filtering steam.



` Patented Jan. l5, |90I. W. H. BARR. METHOD 0F FILTERING STEAM.

(Application med my 29, 1960.)

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(Na Model.)

,.UNITEID STAT-Es AT1-NT OFFICE.

WILLIAM HENRY BARR, or BURY, ENGLAND.

METHOD -oF FlLTpEfRiNG STEAM.

A- SPECIFICATION fermijng part of Letters Patent No. 666,044, datedJanuary'ls, 1901,.

application ledllllay 29, 1900. Serial No. 12,454. (No specimens.) Y

Taal? whQm tn/bay concern.: 'I y v Beit known that I, VV'ILLIAMHENRYBARR, a subject of the Queen of Great Britain and.Ilieland,'residing-at", Bury, iuthe count-y of Lancaster,`England,'haveinvented certain I newand useful Improveinentsin Methods ofandpApparatus for Filtering and Deodorizing Steam,(for which I have madeapplication for patent `in Great Britain, No.` 13,128, dated June24,'1899,)'of"which the following is a 'speciflcation.,y i y Myinvention relates toa method of and apparat-us for use in filteringanddeodorizing steam, by means of which exhaust or live steam maybefiltered to remove oily particles,

. moisture of condensation, and foreign mataccompanying drawings showtersA held in suspension'. Further, when required, bad smells due'tohydrogen sulfid or to-otherrvolatile organic substances may be removedand the steam thus deodorized. The the apparatus devised for thispurpose. v

Figure l is a sectional elevation ofa single unit apparatus forfiltering and deodorizing steam. Fig. 2 is a sectional elevation of .anapparatus suitable for the treatment of very large'yolumes of steam.Fig. 3 is a plan of Fig. 2 with the' cover removed. Fig. 4 is anenlarged detail -view of a portion of one of 30 jshown in Figs. 2 and 3.

the lter-beds employed with the apparatus Referring in l-tllerst placeto Fig. l, the apparatus consists of a pressure-proof casing v a,carried by asuitablestand b. A'cov'er c is supplied, secured by means ofhinged bolts c', While a dis-k c2 of asbestos provides'a fluid- "tightjoint between the lid or cover c and the casing a. Tol'the cov'er c issecured a filterbed d, which consists of a perforated metallic tube.When larger than tw'o inchesin diamstretching process omitted, so thatthe interstices are reduced in size and at the same time the tensilestrength of the cloth bers is The tube d is formed at each endlincreased, andthe cloth is thus rendered very suitable as asti-ainingmatelial. The straining-jacketl is secured to the tube d bymeans of a cord Wrapped around the grooves d2.

To Iilter the steam, I throw into the bottom of the clean empty casing aa small quantity of porous earth, such as kieselg-uhr or agalite or anyother suitable porous land absorbing substance of a likecharacter,sufficient iu A quantity to cover the jacketed cylinder d tothe'thickness of from one thirty-second to one-` eighth of an inchl Athicker coating of filtering-earth may be used, but for all ,practicalporosity and absorbing powers, but other filtering-earths-such asagalite, chalk, and the So far I have only-provided for the removalofoily particles, foreign matters in suspension, and moisture ofcondensation; but when it is desired to remove badsmells from the\'5steam, due to hydrogen, s-uliid, or to other volatile organicsubstances, I use about equal proportions of a lterigeartb, such askieselguhr or agalite, and oxid of zinc or other basic metallic oxid,which is deposited at the bottom of the pressure-'proof casing a, and

before turning on thesteamlcintroduce, v

through the cup f,a fewounces of terebene or other hydrocarbon of thisfYclass of terebenes. This has the'evect not only ofpurifying andfiltering the steam, but of destroying bad smellsby the chemical anddeodorizing action.v

steam and removing oilypar'ticles-andother foreign matter therefrom -itis possible to Thus in addition to filteringl Amo purify steamraised-from canal or othei'niml pure water and use such purifiedv steam`for hnmidifying purposes--suclras in weavingsheds and spinning-rooms.

fied and deodorized has anagreeable aromatic odor, and by its action ofdeveloping ozone purilies the atmosphere in such rooms withbeneeialresults. During the workingol the apparatus the terebeneis'introdnced daily through the cup f, and when required for cleansing`pin-poses thel filter-bed d, attached to the lid,can be removedtherewith, so that the cloth strainer' can. be removed and cleansed.

For filtering and deodorizing larger volumes of steam I employ a numberof filtering unitsarranged-as shown in Figs. 2 to 4.

I employ any suitable number of filteringcylinders,.according to thevolume. of steam to treated, and mount such filtering-cylinders inconcentric circles, as shown in the plauvview- Fig. 3, Withinavpressure-p'roof cas- `44fing g. The vcylinders deliver thel purifiedarrangement forsixty-one cylinders.

steam into a receiver `h at the bottom of 'the lcase', from' whence' itpasses through the delivery-pipe h. Figs. 2 and 3 show such an A lid orcoveri is secured to the casing g by means of swing-belts il', whichcover also carries a balance-weight hookj, pressure-gage lc, and

c'up'l. The lter-beds each consist vof a .central perforateddrainage-tube fm, screwed and expandedin the diaphragm -plate "n, whichforms -a roo-l` to the reservoir or receiver h.

Thepe'r-forated drainagetubes n serve' to carry and support perviouscylinders'o, a concentric circulating-space being provided bydistance-pieces p. The pervious cylinders o are wrapped with mercerizeduustretched cot- 'ton cloth,` the ends of which are tucked with.- in thecylinders yo and the Whole secured in' `Aposition by meansv of cap-nutsy`p',whieh' screw'.

1 ing a fluid-tight joint..` The'ltering earth or .n

yonthetop of the inner tubes m, s o that the cylinders o are jammedtightly in position,A

the turned-in layers of cotton fabric providwhence it is drawn o by Wayof the deliverypipe 7?.,'assh'ow-n by the arrow. 'lerebene may be addedwhen deodorizing the steam through the cup l. To clean the filter-beds,

the cap-nuts p may be unscrewed and the outer cylinders o removed toWash offv the dirty iltering-earth,or the filter-beds may be washed nSitu by a .reversed vcurrent of clean water delivered through thereceiver h,whie h throwsoii the deposit of dirtyltering-earths, thedeposit being `removed,'from thecasingfg by Way of the flush-pipe r. toan enlarged scalea portion of the filter-bed. I declare that what Iclaimis--- 1. The herein-described method of filtering steam consistingin" depositing a 'thineoatg In rig. 4 1 show,

ing of agalite on a suitable bed, and passingthe steam therethrough,vsubstantially as dyescribed. y f ,2.2 The herein-described method offiltering audfdeodorizingsteam consisting in depositvinga mixture ofagalite and a basic metallic oXid with an admixture o t'erebeneupon asuitable support, and passing the steam therethrough. v

In Witness whereof I have hereunto set my hand in presence of twoWitnesses.

WILLIAM HENRY BARR.

Witnesses:

J osHUAv ENTWISLE, ALFRED YATEs.

